Superstar R&B singer Beyonce Knowles and her husband, rapper Jay-Z were spotted arriving at Barcelona airport on Wednesday to continue their On The Run II world tour.

JAY-Z’s dramatic weight loss sparked health fears online. The 48-year-old rapper looked frail as he arrived at the airport. Concerned security surrounded the rapper and kept a wary eye on him.

Radar Online reported that JAY-Z lost 30 pounds on his wife’s strict vegan diet, but fans were shocked at the rap mogul’s appearance in the new photos.

Makeup-free Bey and JAY were accompanied by Beyonce’s nephew Daniel Julez Smith, Jr, 13,(carrying a family friend); Beyonce’s mom, Tina Lawson, and their daughter, Blue Ivy Carter. Julez wore a mop of blonde hair on his head.

The mega couple will perform tonight at the Estadi Olimpic Lluis Companys. The concert is not sold out.

Photos by Quimi Ortiz / BACKGRID, Lagencia Grosby / BACKGRID